Shot in 16mm inside the studio of artist Alexander Calder (1898–1976) in Roxbury, Connecticut, "Enigmatic Whisper" draws a filmic portrait of one of the protagonists of twentieth-century art: through images of tools and work materials, still conserved as Calder left them, as well as the natural external context. The film focuses on one of Calder’s mobiles—kinetic sculptures that are among his most iconic works—still hanging from the ceiling of the studio. The rhythm of the film, with often sudden changes of scene, is enunciated by drum and trumpet sounds, as well as by those emitted by the kinetic sculpture in movement.